Heel-covering trimming apparatus



P. R. GLASS.

Patented Feb.14, 1922.

2 SHEETS-SHEET I.

P. R. GLASS.

HEEL COVERING TRIMMING APPARATUS.

APPLICATION mu) not. 11. 1919.

1,406,370, Patented Feb. 14, 1922.

2 SHEETS-SHEET 2.

//v VE/V 727, 7;

UNITED' STATES PATENT orr cs. I

PERLE Y B. 'GLASS, OF BROOKLINE, MASSACHUSETTS, ASSIGNOR TO UNITED SHOEMACHINERY CQROBATIO1L OF PATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

HEEL-COVERING TBIMMING APPARATUS.

Original appIication filed September citizen of the United States,residing in Brookline, in the county, of Norfolk and State ofMassachusetts, have invented certain Improvements in Heel-CoveringTrimming Apparatus, of which the following description, in connectionwith the accompanying drawings, is a specification, like referencecharacters on the drawings indicating like parts in the several figures.

This invention relates to apparatus for covering the heels of shoes withflexible material, such as leather or fabric, and more especially toapparatus adapted to trim such covering after it has been applied toheels which have been secured to shoes. This application is a, divisionof that filed by me September 9, 1918, hearing Serial Number 253,255,and entitled Heel covering apparatus. i i As far as I am aware, suchheel covering operations previous to my invention have been performedeither wholly by a series of relatively slow manual operations or withapparatus requiring special attachments to the covering. The abovereferred to application discloses apparatus by means of which heels inplace upon shoes may be rapidly and effectively covered with material inthe form ordinarily provided, and with little manual effort, and oneobject of the invention of the present application is to provide meanswhich without sacrifice of their utility will beconvenientlyutilizable.in connection with so covering attached heels totrim excess material from the covering to leave a uniform projectionbeyond the edge of the heel.

Features of the invention consist in the provision of a guard forcontact with the heel to'which the covering is to be applied, thecovering passing between the knife and the guard, and'a gageco-operating with the rand crease of the shoe operated on to determinethe width to which the edge of the covering is to be trimmed, and theremay desirably be provided means for adjusting the relative positions ofthe'knife and either the guard or gage or both these members.

A further feature of the invention lies in the-provision of novel means,normally yield- Spccification of Letters Patent. Patented Feb, 14 1922,

9, 1918, Serial No. 253,255. Divided and this application filed 0cto-.ber 11, 1919. Serial No. 829,996.

ingly held out of operative position, for grinding the knife, andarranged to be moved by the operative into grinding position.

Other objects and features of the. inven tion will appear in connectionwith the following description of a preferred embodiment of theinvention which I have illustrated in the drawings as an exemplificationthereof.

111 the drawings Fig. 1 is a top plan view of so much of the machine asrelates to the covering trimming means;

Fig. 2 is an end elevation. looking from the left in Fig. 1, with themain drive shaft shown in cross-section; and

Figs. 3 and/lare sectional detail views 011 lines 3-3 and 4- 1 of Fig.2, respectively.

After the shoe and covering have been prepared and the covering cementedto theheel. as set forth in the above referred to application bearingSerial Number 253,255, it is necessary in order to give uniformity totrim the edge of the covering which is to enter the rand crease and thisis done by the following mechanism.

Suitably journaled in bearings supported by the frame of the machine isa main drive shaft 32 rotated from a suitable source of power by a belt34 co-operating with fast and loose pulleys 36. A belt shifter mountedupon a bracket 4:0 of the frame enables the belt to be moved from onepulley to the other to rotate the shaft as may be de sired.

At t-he end of an arm 18 extending for; wardly from the frame of themachine is a transverse extension 52 in which is journaled a horizontalshaft 54 connected for rotation to the shaft 32 by belt gearing 56. Fastupon the left hand extremity of the. shaft 54-, as viewed in Figs. 1 and4:, is a circular knife 58 provided with a peripheral cutting edge.Carried upon the portion 52 of the arm 18 and surrounding the knife isacasing, having a body 60 closed at its outer side by a head 62. Thereis, however, at the lower forward portion of this casing an openingappearing at 6 1- in Fig. 2 of the drawings, through which the knifeprojects for co-operation with the work. T o engage the counter portionof the shoe operated on is a guard having a shank 66 secured to thecover 62 of the casing by a screw and slot connection 68 allowin itsmovement radially of the knife. rejecting from the shank, firstoutwardly in a horizontal direction and then downwardly and inwardly, anarm 70 having at its lower end beneath the knife a laterally extendedguard portion 7 2 curved to conform generally to the countor portion ofa shoe and against which the cutting edge of the knife operates. Theform of the arm permits the excess of material which is to be trimmedaway from the covering to enter between the knife and guard, while theadjustment by means of the connection 68 enables the operator to bringthe guard into proper relation to the knife as the latter is worn awaythrough sharpening.

To aid the operator in trimming to a line parallel to the rand crease,there is shown mounted on the edge ofthe casing 60 a gage arm 74fsecured in place by a screw 76 passing through a transverse slot at theupper end of the arm. This arm H extends with its lower enlarged end 78adjacent to the inner side of the knife, it being adjusted by means ofthe screw 7 6 so that when the gage is in the rand crease the knife willtrim the heel covering to a width giving suflicient projection toproperly tuck into and be retained in the crease.

To assist the operator in correctly following thecrease in trimming, Iprefer to first mark its position as set forth in the above referred toapplication having Serial Number 253,255.

its the knife 58 becomes dull in use it may be sharpened without removalfromthe apparatus by a grinding member forming a part thereof. Thisgrinning member is furnished. by an abrasive wheel 80 fast upon thelower end of a spindle 82, rotatable in upper and lower arms 84 carriedon a slide 86 movable on the portion of the arm 18. Turning in thesupport at the end of the slide is a screw 87 threaded into said slide,by which the position of the grinding wheel with relation to the edgeofthe knife may be varied. Fixed upon the spindle beneath the uppersupporting arm is a pulley 88 con nected by a belt 90 with a pulley 92on the shaft 32. To control the rotation of the grinding wheel the beltpasses over a tighteuer furnished by a pulley 94 mounted on a lever 96fulcrumed upon the extension 52. The lever has upon one arm a springlatch 98 engaging a notched segment 100 secured to the extension. Bythis tightener the belt 90 may be placed under such tension as to rotatethe spindle 82 and the grinding wheel, or the belt may be loosened sothat the grind ing wheel is not driven. The lower run of the belt ispreferably guided by a pulley 102 rotatably mounted on the arm 18. The

grinding wheel is held normally out of contact with the knife by ahelical spring 104 surrounding the spindle and interposed between thelower bearing arm and the pulley 88. The spindle may be pressed down tobring the grinding wheel into engagement with the edge of the knife by afinger piece or head, 106, loosely mounted upon the upper extremity ofthe spindle and retained in place thereon by a screw 108 extending intoa circumferential groove in the spindle. An anti-friction ball 110 isshown (Fig. 3) interposed between the head and spindle so that theformer may be forced down by the operator without sharing in therotation of the spindle.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a heel-covering apparatus, a knife rotatable in a plane normal tothe surface of a' shoe presented thereto, and a guard for contact withthe work and between which and the knife the heel-covering may pass.

2. In an apparatus for trimming the covering of heels, a rotatableknife, and a guard provided with a face progressively to lift the marginof the coveringto be trimmed and with which guard the knife co-operates.

In an apparatus of the class described, a rotatable knife, a guardprogressively to lift the excess portion of the work and having aportion bent outward to afford clearance for said excess portion andbetween which and the knife the work may pass, and means constructed andarranged to permit the relation between the guard and the cutting edgeof the knife to be varied.

4. In a heelcovering apparatus, a rotatable knife, a casing about theknife, and a guard mounted upon the casing and extend- .ing outwardlyfrom and then toward the casing and adjacent to the edge of the knife.

In a heel-covering apparatus, a rotatable knife, a casing about theknife, and a guard including a slide mounted upon the casing and an armextending outwardly from the casing and then adjacent to the edge of theknife, the outwardly extending portion of the arm giving a space for theheel covering to enter.

6. In an apparatus of the class described, a gage for cooperation with ashoe, a guard progressively to lift the work ready to be cut, and aknife between the gage and the guard operating upon a portion of theshoe.

7. In a heel-covering apparatus, a gage for contact with the coveringover, i the rand crease of a shoe, and a knife operating upon thecovering on the opposite sideof the gage from the shoe heel.

8. In a heel-covering apparatus, a casing, a knife rotatable therein,and a gage for cooperation withthe rand creaseof aqshoe, said gage beingmounted upon the casing and extending adjacent to the periphery of theknife.

9. In trimming apparatus, a gage for co-operation with a shoe, aknifeoperating adjacent to the gage, means constructed and arranged topermit the distance between the knife and gage to be varied, and amember to lift the portion of the shoe to be trimmed away from theremainder of the shoe and progressively to present it to the knife.

10. In a heel-covering apparatus, a casing, a knife rotatable therein, agage for cooperation with the rand crease of a shoe, and means forsupporting the gage upon the easing, said supporting means beingconstructed and arranged to permit the gage to be adjusted transverselyof the knife.

11. In a trimming apparatus, a rotatable knife, and members for contactwith the work situated at opposite sides of the knife, one of saidmembers extending outside of the cutting edge of the knife and having aportion progressively to lift the work to present it to the knife.

12. In a trimming apparatus, a rotatable knife, a guard member situatedat one side of the knife and having a portion progressively to presentthe work to the knife, and a gage member situated at the opposite sideof the knife and arranged to follow the rand crease of a shoe. I

13. In a heel-covering apparatus, a rotatable knife, a member forcontact with the counter portion of a shoe co-operating with the knife,and a member for contact with the heel covering cooperating with saidknife.

14. In a heel-covering apparatus, a rotatable knife, a guard member forcontact with the counter portion of a shoe co-operating with the knife,and a gage member for contact with the heel covering co-operating withsaid knife.

15. In a heel-covering apparatus, a rotatable knife, a guard member forcontact with the counter portion of a shoe situated at one side of theknife, and a gage member for contact with the heel covering over therand crease situated at the opposite side of the knife.

16. In a heel-covering apparatus, a frame, a knife rotatable upon theframe for trimming the covering, a grinding member mounted upon theframe for co-operation with the knife, and a gage to determine theamount to be trimmed by the knife and adj ustable as the knife is groundaway.

17. In a heel-covering apparatus, a frame, a knife rotatable upon theframe for trimming the covering, a member to co-operate therewith toforce the covering against the knife, and a grinding member movable uponthe frame for co-operation with the knife, without moving said member.

18. In a heel-covering apparatus, a frame, a knife rotatable upon theframe, a grinding member mounted upon the frame for movement into andout of grinding relation to the knife, and a member to force theheelcovering against the knife and adjustable relatively thereto as theknife is ground away.

19. In a trimming apparatus, a frame, a knife mounted for rotation inthe frame, means for rotating said knife, a grinding member mounted uponsaid frame normally at rest, means operable at will and independently ofthe knife-rotating means forrotating said grinding member, and yieldingmeans, arranged to be overcome by the operative, tending to move thegrinding member axially out of engagement with the knife.

20. In a trimming apparatus, a frame, a knife mounted for rotation inthe frame, means for rotating said knife, a grinder mounted upon saidframe, mechanism to actuate the grinder, a lever within reach of theoperator of the apparatus for stopping.

and starting said mechanism, and yielding means, arranged to be overcomeby the operative, to hold the grinder out of knife grinding position.

21. In a trimming apparatus, a frame, a knife mounted on the frame fortrimming the covering, a rotary grinder mounted upon said frame,yielding means arranged to be overcome by the operative to hold thegrinder out of knife grinding position, a belt to rotate the grinder andav lever within reach of the operator of the apparatus to vary thetension of the belt to stop and start the rotation of the grinder.

In testimony whereof I have signed my name to this specification.

PERLEY R. GLASS.

